What is the maximum allowable roll in backstroke?

• A. A maximum of 45° roll.
• B. A maximum of 90° roll.
• C. A maximum of 120° roll.
• D. No roll limit.

Answer: (B)

In backstroke you rotate the body around the long axis to help the arm recovery and keep a stable, streamlined line on the water. The maximum roll is about 90 degrees.

Keeping the roll to 90 degrees or less lets the swimmer stay mainly on the back with the chest toward the ceiling, making it easier to see the lane, breathe smoothly, and maintain balance and propulsion. If you roll more than 90 degrees, you over-rotate toward the side or toward the stomach, which disrupts alignment, increases drag, and can compromise breathing and control.

A smaller limit like 45 degrees would still be workable, but it would overly restrict natural movement and efficiency. 120 degrees or no limit would push you into unstable positions that reduce efficiency and safety.